Silicone Candle Mold Manufacturer — OEM Engineering Guide

A silicone candle mold is a platinum-cured elastomer tool engineered to accept molten wax pours between 55 °C and 105 °C and release finished candles cleanly across 500-1,000+ cycles. The engineering-critical specs are durometer (Shore A 15-30 for detailed 3D, 40-60 for pillar geometry), platinum cure chemistry, and undercut geometry — not surface aesthetics. This guide walks the compound selection, tooling economics, wax-specific pour temperatures, and MOQ math a candle brand or hobbyist mold-seller needs before signing a first OEM PO.

The silicone candle mold market splits into two very different buyer profiles: retail craft chains stocking blister-packaged molds for hobbyist candle makers, and DTC craft brands selling premium sculptural molds direct to the maker community on Etsy, Amazon Handmade, and Shopify. Both need the same engineering discipline underneath — the same platinum-cured compounds, the same 4-hour post-cure, the same ASTM D2240 durometer traceability — but the tooling economics and packaging compliance diverge sharply. This guide is written from a Dongguan factory floor where Wetop runs the same compression cells that supply Tier-1 sink brands, adapted for the specific geometry and pour-cycle demands of candle molds.

Key takeaways

• Only platinum-cured silicone qualifies for repeated wax-pour candle molds.
• Shore A 15-30 for detailed 3D, 40-60 for pillar and simple geometry.
• Wax pour spec runs 55-105 °C — deep inside silicone’s -40 °C to 230 °C envelope.
• A properly cared mold survives 500-1,000+ pours before edge tear or filler bloom.
• Two-part molds unlock unlimited undercut at 1.8-2.4× single-part tooling cost.
• Retail-shelf molds need 21 CFR 177.2600 documentation for adjacent-use claims.
• MOQ 500 units per SKU on existing tooling; new tooling from 3,000 units.

What is a silicone candle mold, chemically?

A silicone candle mold is a thermoset polydimethylsiloxane elastomer tool, cross-linked with a platinum-hydrosilylation catalyst, formulated with fumed-silica reinforcement and pigment master-batch. Unlike urethane or latex candle molds, it is chemically inert to hot wax, resists pigment staining across hundreds of pours, and releases across complex undercut geometry without a release agent on most wax types.

The material specification that separates a professional-grade OEM candle mold from a craft-store impulse-buy is the cure chemistry. Platinum-cured silicone runs a Karstedt-type platinum-divinyltetramethyldisiloxane catalyst at 5-10 ppm loading. The cure is a clean hydrosilylation reaction that produces no volatile byproducts, no residual acid, and no color-fastness drift when exposed to repeated 105 °C gel-candle pours. This is why every serious candle-mold brand — and every mold that survives 500+ pours in real workshop conditions — runs a platinum system.

Peroxide-cured silicone, by contrast, uses 2,4-dichlorobenzoyl peroxide as the vulcanizing agent. The peroxide decomposes to 2,4-DCBA acid during cure, and residual acid remains in the polymer bulk indefinitely. On the first hot wax pour, that acid migrates into the wax and discolors it — soy candles turn faintly yellow, pale-pigment paraffin picks up an off-white cast, and the mold surface begins etching within 100-200 pours. This is the reason “cheap silicone mold that ruined my wax” reviews are essentially universal among peroxide-cured import candle molds.

The reinforcement filler is fumed silica at 20-35 phr, milled into the compound at the two-roll mill stage. Fumed silica raises the tear strength from ~3 kN/m (unreinforced silicone) to 25-40 kN/m on the finished mold — the mechanical difference between a mold that tears on the fifth demold and one that survives 800 pours. Buyers occasionally see white powdery bloom on used candle molds after 300-400 cycles; this is under-dispersed silica migrating to the surface, and the fix is upstream on the compounding line, not a surface wipe.

What temperature does silicone candle mold need to withstand for wax pouring?

Platinum-cured silicone candle molds accept every common candle wax comfortably: paraffin at 60-80 °C, soy at 55-65 °C, beeswax at 65-70 °C, and gel candles at 95-105 °C. Silicone's continuous service envelope of -40 °C to 230 °C leaves 125 °C of headroom on the hottest gel pour and 165 °C on standard soy. Thermal degradation is not the failure mode a candle-mold OEM designs against.

The wax-pour temperature envelope, by wax family:

Wax type	Pour temperature	Cool time (typical 4 oz candle)	Silicone safety margin
Soy (100 % or blend)	55-65 °C	4-6 hours	+165 °C to top of spec
Coconut-soy blend	60-70 °C	4-6 hours	+160 °C
Paraffin (container)	60-80 °C	3-4 hours	+150 °C
Paraffin (pillar / votive)	75-95 °C	6-8 hours	+135 °C
Beeswax	65-70 °C	5-7 hours	+160 °C
Gel candle	95-105 °C	8-12 hours	+125 °C
Palm wax	80-95 °C	4-6 hours	+135 °C

The engineering point is that thermal margin is enormous across every wax type. Silicone’s Si-O-Si backbone is thermally stable to approximately 260 °C in air before oxidative chain scission dominates, and the peak candle-pour temperature (gel at 105 °C) is less than half that. The real failure modes are mechanical: filler bloom after 300-400 cycles, edge tear at thin decorative details after aggressive demolds, and pigment staining on unglazed matte silicone when using high-dye-load waxes.

Freezer conditioning is a technique some candle makers use to accelerate demold — chill the poured candle at -18 °C for 20 minutes before demolding. Silicone remains fully flexible to -55 °C in laboratory conditions and shows no functional change at -18 °C, so this workflow is entirely safe for the mold. For OEM buyers designing packaging inserts that include “freeze before demold” instructions, this is a defensible claim to print.

For the deeper temperature-envelope math, see the silicone temperature range explained guide.

Which durometer is best for a silicone candle mold?

Durometer selection is the single most consequential engineering call in a candle-mold program. For detailed 3D or sculptural molds — faces, textured pillars, animal shapes, undercut geometry — target Shore A 15-30. For pillar candles, votives, tapers, and simple geometric shapes, Shore A 40-60 gives longer mold life. Above 60A the mold tears fine wax detail on demold; below 15A the mold walls collapse on tall pours.

The physics behind the durometer split: candle release depends on the mold flexing around undercuts as the wax leaves the cavity. A soft mold (Shore A 20) flexes 3-5× more than a firm mold (Shore A 55) under the same demold force, so it can accommodate undercuts up to about 30 % of cavity depth without tearing. A firm mold with the same undercut geometry will either tear the wax or tear itself.

Durometer selection matrix by candle mold type:

Mold type	Recommended Shore A	Wall thickness	Tear strength target	Typical life
Detailed 3D sculptural (bust, figure)	15-25	8-12 mm	≥ 28 kN/m	400-600 pours
Textured pillar (fluted, ribbed)	20-30	6-10 mm	≥ 25 kN/m	500-800 pours
Geometric bubble / cube	25-35	5-8 mm	≥ 22 kN/m	600-900 pours
Standard pillar / votive	40-50	5-8 mm	≥ 18 kN/m	800-1,200 pours
Simple taper / tea light	50-60	4-6 mm	≥ 15 kN/m	1,000-1,500 pours
Industrial multi-cavity insert	55-70	4-5 mm	≥ 12 kN/m	1,500+ pours

Wetop applies ASTM D2240¹ durometer inspection in-line — three points on every 20th part sampled, with a control chart that triggers investigation at ±3 points from the target. Tear strength is verified per ASTM D624² Die B on a lot-representative coupon before container release. The tear-strength number is the single most predictive quality gate — a mold shipped at Shore A 25 but tear strength 18 kN/m instead of 28 will fail early even if the durometer chart looks fine.

Platinum-cured vs peroxide-cured — why candle molds demand platinum

Candle molds demand platinum-cured silicone for one non-negotiable reason: peroxide-cured silicone leaves 2,4-DCBA acid residues that migrate into hot wax, discolor soy and pale paraffin, and etch the mold surface within 200 pours. Platinum's clean hydrosilylation cure produces no residues, no wax discoloration, and mold life extends to 500-1,000+ pours. The material cost delta is 15-25 % but shows up in warranty and repeat-order economics immediately.

The chemistry difference is small on paper and enormous in field performance. Peroxide-cured silicone is vulcanized with 2,4-dichlorobenzoyl peroxide, which decomposes at 170 °C during primary molding to produce two 2,4-dichlorobenzoic acid (2,4-DCBA) radicals. The DCBA cross-links the polymer, but a residual 0.05-0.20 % remains trapped in the polymer bulk after cure. Post-cure removes some, but never all.

On the first hot wax pour, the trapped DCBA migrates to the mold surface and transfers into the wax. In colored waxes this is invisible. In natural soy or pale paraffin, it produces a characteristic yellow or beige tint that gets worse with every subsequent pour. Candle makers see it as “my mold ruined my wax” and quit the brand.

Platinum-cured silicone runs a Karstedt catalyst that produces no acid byproducts. The cure is a clean addition reaction of Si-H to Si-vinyl, forming Si-CH₂-CH₂-Si linkages with zero byproduct. Post-cure at 200 °C for 4 hours drives residual cyclic siloxanes below 0.5 %, and nothing acidic remains to migrate into wax at any pour temperature.

The compliance math for a Tier-1 retail buyer:

Metric	Platinum-cured	Peroxide-cured
Wax discoloration at 500 pours	None	Progressive yellow/beige on pale waxes
Mold surface etching	None	Visible at 150-200 pours
Typical service life	500-1,000+ pours	150-300 pours
FDA 21 CFR 177.2600 compliance	Passes	Fails on extractives
LFGB §30/31 (finished part)	Passes	Fails DCBA test
Cost premium	+15-25 %	Baseline
Retail-audit acceptance	Yes	No

Every OEM candle-mold program Wetop runs specifies platinum. Peroxide-cured is disqualified by material selection, not by policy — the peroxide chemistry cannot produce a defensible candle-mold compliance packet regardless of downstream QC. For the deep chemistry contrast, see platinum-cured vs peroxide-cured silicone.

How is undercut and draft angle engineered for complex 3D candle molds?

Draft angle for silicone candle molds is aggressively small — 0.5° to 2° is typical because silicone's elastic recovery lets it demold from geometry a rigid mold could not survive. Undercut depth up to 30 % of cavity depth is achievable in a single-part mold at Shore A 15-25 using compound flex. Beyond that threshold, or for full-round sculptural shapes, a two-part mold with a clean equatorial parting line is the engineering answer.

Undercut engineering is the reason silicone dominates the sculptural candle mold segment. A rigid injection-molded thermoplastic mold requires positive draft everywhere — every geometric feature must be pullable in a straight line. Silicone can flex, so the mold stretches around the wax feature on demold and recovers to its as-molded geometry once released. The wax feature itself is rigid, so it does not deform on the way out.

The three geometric parameters an OEM buyer must specify before tooling begins:

1. Cavity depth vs undercut depth ratio — undercuts up to 30 % of cavity depth are single-part-friendly at Shore A 20; beyond 30 %, either soften to Shore A 15 (life drops) or split into a two-part mold.
2. Draft angle on primary walls — 0.5° minimum for pull-line surfaces, 1-2° for hidden internal geometry, 3-5° recommended on decorative script or fine texture to prevent tear on repeated demolds.
3. Parting line placement — for a two-part mold, place the parting line at the geometric equator or at a design line that hides the 0.05-0.10 mm flash line as an intentional feature.

For a bust or full-round sculptural candle mold, two-part construction is the only defensible answer. A single-part mold cannot demold a full 360° geometry without tearing itself or the wax. Two-part molds cost 1.8-2.4× the single-part tooling and add roughly $0.15-$0.30/unit in molding labor because the two halves must be aligned and clamped before pouring — but the geometric freedom is unlimited.

Two-part vs single-part construction summary:

Construction	Best for	Tooling cost multiplier	Unit cost premium	Undercut freedom
Single-part open	Pillar, votive, taper, geometric	1.0×	Baseline	Up to 30 % of cavity depth
Single-part flexible	Textured pillar, fluted geometry	1.1-1.3×	+$0.05/unit	Up to 40 % with softer compound
Two-part	Bust, full-round, sculptural	1.8-2.4×	+$0.15-$0.30/unit	Unlimited
Multi-part (3+)	Complex articulated geometry	2.5-3.5×	+$0.30-$0.60/unit	Unlimited, alignment risk

Dimensional tolerances follow ISO 3302-1³ Class M2 for cavity dimensions and Class M3 for parting-line flash. Wetop’s tooling shop CNC-machines cavity inserts to ±0.03 mm, then polishes to a Ra 0.4 μm surface finish that translates to a satin sheen on the finished candle — matte enough to look premium, glossy enough to release cleanly.

Do silicone candle molds actually need release agent?

Most well-formulated platinum-cured silicone candle molds release cleanly with zero release agent on standard soy and paraffin — this is silicone's inherent low surface energy (around 22-24 mN/m) at work, not a coating. The edge cases that benefit from a light release: beeswax pours (natural tack), gel candles (chemical stickiness on cool-down), high-dye-load pigmented waxes, and the very first pour on a new mold. A single fine mist of silicone-safe release is enough.

The release-agent debate in the candle-maker community is dominated by two failure modes traceable to a single upstream cause: peroxide-cured silicone. When a maker complains that “I need release spray on every pour,” they almost universally own a peroxide-cured import mold whose surface has already begun etching from residual DCBA acid. Platinum-cured molds do not require release for 90 % of use cases and never require it during the first hundred pours.

The four documented edge cases where release helps:

1. Beeswax — natural triterpene esters in beeswax create genuine tack against silicone; a light release spray extends demold ease across the mold’s full life.
2. Gel candle — mineral oil / triblock copolymer gel candles cool sticky and can pull thin surface layers of silicone on aggressive demold. Release recommended for gel-only workflows.
3. High-dye-load pigmented waxes — powdered pigments above 1.5 % loading can migrate into micro-porosity on the mold surface over time. Release creates a barrier layer.
4. First pour on new mold — factory-fresh silicone occasionally carries a molecular-thin layer of processing aid that behaves like natural release on pour 1 (candle sticks slightly), then wipes clean on pour 2. A first-pour release spray eliminates the confusion.

The release agent must be silicone-compatible — silicone spray (dimethicone-based) or PTFE dry-film release. Never use petroleum-distillate sprays (WD-40, kitchen sprays, mineral oil), which swell the silicone surface, extract siloxane oligomers, and cut mold life by 60-70 % within 50 pours.

For OEM packaging inserts, Wetop’s recommended language: “This platinum-cured silicone candle mold releases cleanly with most soy and paraffin waxes. For beeswax, gel candles, or the first pour on a new mold, a light mist of silicone-compatible mold release is recommended. Do not use petroleum-based sprays.”

What is the mold longevity spec, and how do brands communicate it?

A properly cared platinum-cured silicone candle mold survives 500-1,000+ pours in normal workshop conditions. The dominant failure modes are filler bloom (white powdery surface) after 300-400 aggressive cycles, edge tear at thin decorative geometry after 400-600 demolds, and pigment absorption stain after high-dye-load pigmented waxes. Thermal degradation is not a failure mode at any candle-pour temperature.

The engineering spec Wetop publishes on OEM candle molds:

Mold configuration	Minimum service life	Typical service life	End-of-life failure mode
Single-part Shore A 20 detailed	400 pours	600-800 pours	Edge tear on undercut geometry
Single-part Shore A 35 pillar	600 pours	900-1,200 pours	Filler bloom after 400+ dishwasher exposures
Single-part Shore A 50 geometric	800 pours	1,200-1,500 pours	Rim deformation from stacked storage
Two-part Shore A 25 sculptural	300 pours	500-700 pours	Parting-line tear from misaligned clamping

Storage matters more than most makers realize. A mold that lives flat, dust-free, and away from UV exposure will hit the top of its service-life range. A mold compressed under other tooling in a workshop drawer will hit the bottom of the range because compression set creates permanent memory in the wall geometry. UV exposure accelerates chain scission on the surface layer; molds left on sunlit shelves lose 20-30 % of tear strength within 6 months.

Tensile strength and elongation-at-break per ASTM D412⁴ are the compound properties that predict field longevity. Wetop’s targets on a Shore A 25 candle-mold compound: tensile strength ≥ 8 MPa, elongation-at-break ≥ 450 %, tear strength (Die B) ≥ 28 kN/m. Any compound below those numbers is disqualified from the candle-mold catalog, whatever the cost pressure.

For OEM buyers writing packaging or product-listing copy, the honest spec claim is “500-1,000+ pours with proper care.” Anything more precise misrepresents the variance across wax types and workshop conditions; anything less undersells the material.

What compliance certifications do silicone candle molds actually need?

For pure candle-only use, no formal certification is legally required — candles are not food contact. But retail chains selling craft candle molds (Michaels-tier, Hobby Lobby-tier, JOANN-tier) increasingly request 21 CFR 177.2600 documentation because packaging language often positions molds for adjacent uses: soap, bath bombs, chocolate, resin, wax melts. A defensible OEM program ships the 177.2600 packet whether or not the buyer requests it.

The compliance ambiguity is real: a candle mold is not a food-contact article, but retail buyers routinely reposition the SKU mid-catalog to capture the broader craft market. A mold sold as “candle & soap mold” is skin-contact adjacent. A mold sold as “candle & chocolate mold” is direct food contact. Locking in FDA 21 CFR 177.2600⁵ extractive testing at product launch means the SKU can be repositioned or bundled without a compliance re-run.

The compliance packet Wetop assembles for retail-shelf candle-mold programs:

Test	Standard	Sample	Frequency
Extractives	21 CFR 177.2600	Finished mold	Per SKU launch + material change
Lead content	CPSIA §101	Finished mold	Per SKU launch
Cyclic siloxanes	GC-MS D4/D5/D6	Finished mold	Per compound change
SVHC screen	REACH Annex XIV/XVII	Finished mold	Per catalog cycle (EU)
Post-cure record	Wetop QC log	Per lot	100 % lots
Durometer control chart	ASTM D2240	3 pts per 20th part	100 % lots
Tear strength verification	ASTM D624 Die B	Lot coupon	1 per production lot

For EU distribution, add REACH SVHC screening⁶ per catalog cycle — the D4 and D5 cyclic siloxanes are currently on the candidate list and any candle-mold compound over the reportable threshold will fail EU customs even if the product is not marketed for food contact.

CPSIA lead screening⁷ is not legally applicable to non-children’s candle molds, but every major US retail chain applies it as a screen anyway — total lead ≤ 100 ppm. Well-formulated platinum-cured silicone runs at < 5 ppm because pigment master-batches are lead-free by construction, but the test still must run and the report still must sit in the vendor compliance folder before a PO is cut. For the deeper regulatory contrast, see FDA vs LFGB silicone.

How do MOQ economics work for retail vs DTC candle-mold programs?

Wetop's baseline MOQ is 500 units per SKU on existing tooling. For new tooling: 3,000 units amortizes cleanly for a single-part pillar mold ($800-$1,600 tooling), 8,000-15,000 units for a two-part sculptural mold ($2,400-$4,800 tooling). Retail-chain programs typically run 10-40k units per SKU; DTC craft brands typically run 500-3,000 units per SKU on existing or shared tooling.

The MOQ math splits sharply between the two buyer profiles because tooling amortization dominates unit cost differently:

Retail chain program — Tier-2 US home improvement or craft chain buying 20,000 units of a fluted pillar mold at $2.10/unit landed:

Cost element	USD/unit at 20k MOQ	Notes
Silicone gum (platinum-cured)	$0.51	125 g/unit at $4.08/kg
Pigment master-batch	$0.03	2 % loading
Molding labor + cycle	$0.24	4-cavity, 3-min cycle
4-hour post-cure	$0.09	Oven amortization
QC (durometer + AQL 1.5)	$0.06	Per lot
Tooling amortization	$0.09	$1,800 tool over 20k units
Retail blister + master carton	$0.32	1 unit / blister, 36 / MC
FOB Yantian handling	$0.09	Export docs + terminal
Sea freight to LAX	$0.24	40’HC, mixed load
Landed cost	$1.67	Ex-warehouse LAX

DTC craft brand program — Etsy or Amazon Handmade seller buying 2,000 units of a two-part sculptural mold at $4.80/unit FOB:

Cost element	USD/unit at 2k MOQ	Notes
Silicone gum (platinum-cured)	$0.85	210 g/unit two-part
Pigment master-batch	$0.04	Custom Pantone
Two-part molding labor	$0.62	Alignment + clamp cycle
4-hour post-cure	$0.11
QC (durometer + tear + visual)	$0.14	Higher-tier sampling
Tooling amortization	$1.60	$3,200 tool over 2k units
Kraft box + insert card	$0.28	DTC unboxing spec
FOB Yantian	$0.09
FOB Yantian	$3.73	Sea freight buyer’s account

The DTC program is 2.2× more expensive per unit primarily because of tooling amortization at low volume. This is not a factory profit spike — it is the mold-cost math. For DTC brands, shared-tooling programs (where Wetop’s existing catalog of pillar molds is white-labeled with in-mold debossed logos) collapse the tooling delta and land near retail-tier pricing at 500-1,000 unit MOQs. For a broader pricing framework across silicone OEM programs, see the silicone OEM pricing structure guide.

Lead time from PO to warehouse — new tooling vs existing

New-tooling candle mold programs: 55-90 days from signed PO to FOB Yantian, with the 4-hour post-cure and the 25-40 day tooling manufacture the two fixed bottlenecks. Existing-tooling programs (repeat orders or shared-tooling white-label): 30-45 days FOB Yantian. Add 22-28 days sea freight to US West Coast, or 32-38 days to US East Coast, for warehouse-receipt totals.

Lead-time Gantt for a new two-part sculptural candle mold program at 5,000 unit MOQ:

Phase	Days	Milestone
Dieline + engineering review	5-7	Approved 3D + drawings
Tooling manufacture (two-part)	30-40	Mold ready for T1
T1 samples	3-5	Physical samples FedEx to buyer
T1 review + revisions	7-14	Buyer sign-off on demold and detail
T2 samples + first-article	10-14	Pilot pour test at buyer’s workshop
Pilot run (200-500 units)	5-7	Retail-shelf validation
Mass production (5k units)	20-30	FOB Yantian
Sea freight to US West Coast	22-28	Arrival LAX

Total from signed PO to warehouse receipt: 105-145 days for a new-tooling two-part program. Single-part pillar mold programs on new tooling collapse to 80-110 days because tooling manufacture is 20-25 days shorter. Repeat orders on existing tooling collapse to 55-75 days end-to-end.

The 4-hour post-cure is a genuinely fixed bottleneck — Wetop runs six post-cure chambers at 1.2 m³ interior each, each cycling one batch per shift. A 5,000-unit candle-mold order occupies 3-4 chamber-shifts of post-cure time regardless of primary molding throughput. For urgent programs, this is the constraint to plan around, not press capacity or QC.

Why does a sink-grid factory make sense as a candle-mold OEM?

The tooling steel, compound-mixing equipment, post-cure ovens, and dimensional QC infrastructure Wetop runs for silicone sink grids are engineered to the same tolerances candle molds require — often to tighter ones. A factory that has cleared Tier-1 kitchen-brand audits for sink protection has already passed the compliance and process-discipline gate retail candle-mold buyers apply. Shared platinum-cured compounding + shared post-cure bank means the marginal cost of adding a candle-mold SKU is lower than standing up a new dedicated candle-mold line.

Wetop’s core three-category focus — silicone sink grids, drying racks, drying mats — shares roughly 70 % of the process infrastructure with silicone candle molds. The compression cells run the same platinum-cured compounds. The post-cure oven bank runs the same 4-hour, 200 °C protocol. The QC station runs the same ASTM D2240 durometer sampling and the same three-point tear-strength verification per lot.

The audit gate Tier-1 kitchen-brand buyers apply to Wetop is documented in ISO 9001⁸ language and covers material traceability, process control, and complaint response with numbered lot records. This is the same audit shape that Michaels, Hobby Lobby, and JOANN apply to housewares and craft supplies — the paperwork translates directly, and the ISO 9001 certificate on Wetop’s wall carries the same auditable weight in either category.

For a candle-mold brand evaluating manufacturing partners, the practical implication is: a factory that has cleared kitchen-tier retail audits on functionally comparable silicone SKUs is a lower-risk supplier than a candle-mold-only shop that has never faced a Tier-1 chain audit. The compliance stack is the moat, not the product category, and a candle-mold SKU is a lateral compound-and-tooling move on top of an already-audited platinum-cured production system.

Where to go next

• If your program hinges on cure chemistry, read platinum-cured vs peroxide-cured silicone for the deep chemistry contrast that drives every candle-mold compound decision.
• If your temperature envelope questions extend beyond wax (freezer-safe, dishwasher-safe, high-temperature soap), read silicone temperature range explained for the -40 °C to 230 °C material physics.
• If you are running the landed-cost numbers on multiple SKU concepts, read the silicone OEM pricing structure guide for the tooling-amortization framework.

Ready to run the numbers on a specific candle-mold SKU? Talk to the engineering desk — send a dieline, a sculpt file, or a benchmark mold and we return DFM notes, cavity-count recommendation, durometer spec, and a landed-cost quote within 3 business days.

Footnotes

1. ASTM International, ASTM D2240 — Durometer Hardness. ↩

2. ASTM International, ASTM D624 — Tear Strength. ↩

3. ISO, ISO 3302-1:2014 — Rubber tolerances. ↩

4. ASTM International, ASTM D412 — Vulcanized Rubber Tension. ↩

5. US FDA, 21 CFR 177.2600 — Rubber articles intended for repeated use. ↩

6. ECHA, REACH SVHC Candidate List. ↩

7. US CPSC, CPSIA Lead Content Requirements. ↩

8. ISO, ISO 9001:2015 — Quality Management Systems. ↩